FILE - SEPTEMBER 26: TV personality Khloe Kardashian is reportedly expecting her first child with basketball player Tristan Thompson. INDEPENDENCE, OH - SEPTEMBER 25: Tristan Thompson #13 of the Cleveland Cavaliers at Cleveland Clinic Courts on September 25, 2017 in Independence, Ohio. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and/or using this photograph, user is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Jason Miller/Getty Images) ORG XMIT: 690205223 ORIG FILE ID: 854159964

Khloe Kardashian’s NBA star boyfriend  Tristan Thompson has been hit with another cheating allegation.

On Saturday, a source revealed to Us Weekly that Thompson engaged in “inappropriate” behavior during the NBA All-Star Weekend in February, following the couple’s romantic Valentine’s Day.

The basketball star was reportedly seen cozying up to models Jasmine Rose and Maya Nova James on February 16.

“Two girls were hanging out with Tristan and his crew, some other basketball players and Canadian friends, at Avenue in L.A. during All-Star Weekend. The girls were at his table and Tristan was paying more attention to one of them, but he wasn’t all over her,” the source told Us. “These girls are models and were in a fashion show for Angel Brinks that weekend and are shooting a show with her.”

Khloe Kardashian Plans For Tristan Thompson After Cheating Revealed

The source then added: “After that the group went to a hookah bar on 3rd called Lavoo Lounge. It was the group of guys and the two girls. Tristan wasn’t kissing on the girls, but he had his arms around and on the one that looks more like Khloé, Jasmine. Tristan was flirting with her and didn’t look or act like someone who had a pregnant girlfriend. The flirting and body language were definitely inappropriate for someone in a serious relationship expecting a baby.”

Ironically, Kardashian accompanied her boyfriend to the All-Star Weekend and the couple was even snapped together at an event on February 17.

While at the event, an eyewitness observed that the new parents “seemed cute and happy together but only stayed for a little [while],” according to Us Weekly.